KAREEN ROSE ELIZABETH SIMPSON (M.D.) – Nephrology Physician, NPI 1780663963
Nephrology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
629 NEPHROLOGY in IL
Provider Addresses for KAREEN ROSE ELIZABETH SIMPSON (M.D.)
210 S DESPLAINES ST
CHICAGO, IL 606615500
Phone: (312) 654-2720
Fax: (866) 597-9534
Type: Location
South Western Avenue, Beverly, Evergreen Park, Lake Township, Cook County, Illinois, 60643, United States
SUITE 326
EVERGREEN PARK, IL 608052814
Phone: (708) 952-3040
Fax: (708) 952-3043
Type: Location
The Edge Lofts and Tower, 210, South Desplaines Street, Greektown, Near West Side, University Village/Little Italy, Chicago, Cook County, Illinois, 60661, United States
CHICAGO, IL 606615500
Phone: (312) 654-2720
Fax: (312) 654-9930
Type: Mailing
10801 S WESTERN AVE STE 201
CHICAGO, IL 606433225
Phone: (773) 770-4824
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 15 Open Payments records for all available years, with a total value of $528.
Total Amount is formed as General ($528) + Research ($0) + Ownership ($0) = $528.
Last reported payment date: 2024-11-26 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($213).
Total Amount
$528
General + Research + Ownership
Payments
15
Total payment records
General Amount
$528
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-26
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2025-12-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040514000318 | I | Nephrology | IL | TBD |
| I20251202002789 | I | Nephrology | IN | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 473 | 65 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 397 | 117 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 187 | 80 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 157 | 65 | $0 |
| 90966 | Home dialysis services per month (20 years or older) | 91 | 14 | $0 |
Insurance plans in this area (ZIP 60661)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | IL | 90935 | Hemodialysis procedure with one physician evaluation | 292 | 150 |
| NEPHROLOGY | IL | 90961 | Dialysis services (2-3 physician visits per month), patient 20 years of age and older | 121 | 52 |
| NEPHROLOGY | IL | 90966 | Home dialysis services per month, patient 20 years of age or older | 151 | 40 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| - | IL | |
| N E P H R O L O G Y | IL | |
| - | IL | |
| - | IL | |
| N E P H R O L O G Y | IL | |
| - | IL | |
| - | IL | |
| Nephrology, Internal Medicine | IL | |
| Nephrology, Internal Medicine | IL |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.